3 # force perl-only version to be tested
4 sub List::Util::bootstrap {}
10 require Config; import Config;
11 keys %Config; # Silence warning
12 if ($Config{extensions} !~ /\bList\/Util\b/) {
13 print "1..0 # Skip: List::Util was not built\n";
19 use Test::More tests => 4;
21 use Scalar::Util qw(tainted);
23 ok( !tainted(1), 'constant number');
27 ok( !tainted($var), 'known variable');
29 my $key = (keys %ENV)[0];
31 ok( tainted($ENV{$key}), 'environment variable');
34 ok( tainted($var), 'copy of environment variable');